Singh, J.S.  <br/><br/>
Perspectives in Ecology 

 - New Delhi  Jagmandir Book Agency  1989 
 - 510 p. 
<br/><br/> 19899 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany
<br/><br/><label>Dewey Class. No.: </label>581.5  / S